Hydrotreating catalyst and process

Abstract

Hydrotreating catalysts comprise a hydrogenating component and a support comprising at least one porous refractory inorganic oxide, said catalyst having BET surface area of 150 to about 190 m 2 /g, bulk density of at least about 0.2 g/cc, total pore volume of at least about 0.9 cc/g with mercury penetration pore volume of at least about 0.1 cc/g in macropores with radii of 600 to 25,000 Å, such surface area, pore size distribution and total pore volume being effective to give an average pore diameter of at leat 230 Å calculated as 4V/A. Hydrotreating process comprises contacting a hydrocarbon feed with hydrogen in the presence of the aforesaid catalyst under hydrotreating conditions. The catalyst and process are particularly useful in hydrotreating feeds comprising high metals or high metals and sulfur content materials.

We claim: 
     
       1. A process for hydrotreating hydrocarbon feeds comprising contacting a hydrocarbon feed with hydrogen under hydrotreating conditions in the presence of a catalyst composition comprising a hydrogenating component and a support comprising at least one porous refractory inorganic oxide, said catalyst having a BET surface area of 150 to about 190 m 2  /g, bulk density of at least about 0.2 g/cc, total pore volume equal to the sum of micropore volume determined by nitrogen desorption in micropores having radii up to 600 Å and macropore volume determined by mercury penetration in macropores having radii of 600 to 25,000 Å of at least 0.9 cc/g, with at least 0.1 cc/g of macropore volume, such surface area, pore size distribution and total pore volume being effective to provide an average pore diameter of at least 230 Å calculated as 4 V/A, wherein at least 0.7 cc/g of the micropore volume is concentrated in pores having radii of 50 to 600 Å, wherein the micropore volume in pores having radii of 50 to 600 Å is distributed such that about 15 to about 60% thereof is provided by pores having radii of 50 to 100 Å and about 40 to about 85% thereof is provided by pores having radii of 100 to 600 Å, and wherein the micropore volume in pores having radii less than 50 Å is less than about 0.15 cc/g. 
     
     
       2. The process of claim 1 wherein the hydrocarbon feed comprises a distillate and hydrotreating conditions comprise a pressure of about 300 to about 750 psig (about 21 to about 53 kg/cm 2 ), temperature of about 600° to about 725° F. (about 315° to about 385° C.), hydrogen rate of about 400 to about 1000 SCFB and space velocity of about 2 to about 5 lb hydrocarbon per hour per lb catalyst. 
     
     
       3. The process of claim 1 wherein the hydrocarbon feed comprises a gas oil and hydrotreating conditions comprise a pressure of about 500 to about 1000 psig (about 35 to about 70 kg/cm 2 ), temperature of about 600° to about 750° F. (about 315° to about 399° C.), hydrogen rate of about 800 to about 1600 SCFB and space velocity of about 1 to about 4 lb hydrocarbon per hour per lb catalyst. 
     
     
       4. The process of claim 1 wherein the hydrocarbon feed comprises an atmsopheric or vacuum resid and hydrotreating conditions comprise a pressure of about 500 to about 10,000 psig (about 35 to about 703 kg/cm 2 ), temperature of about 600° to about 950° F. (about 315° to about 510° C.), hydrogen rate of about 1000 to 10,000 SCFB and space velocity of about 0.2 to about 3 lb hydrocarbon per hour lb. catalyst. 
     
     
       5. The process of claim 1 wherein the hydrogenating component comprises at least one metal selected from the group consisting of the Group VIB metals, the Group VIII metals and vanadium. 
     
     
       6. The process of claim 1 wherein the hydrogenating component comprises molybdenum. 
     
     
       7. The process of any of claims 1-6 wherein the hydrocarbon feed and hydrogen are contacted in the presence of a fixed bed of said catalyst. 
     
     
       8. The process of any of claims 1-6 wherein the hydrocarbon feed and hydrogen are contacted in the presence of an expanded bed of said catalyst.